Respiration is a process of breathing, which is referred to as the movement of oxygen (O 2 ) and carbon dioxide (CO 2 ) to and from the lungs. Chemoreceptor is a specialized receptor cell that reacts to a chemical stimulus to produce a biological signal. There are two types of chemoreceptors, central chemoreceptor which is located in the medulla of the brain and the peripheral chemoreceptor which includes the carotid and the aortic bodies that respond to even small changes in the PO 2 , PCO 2 and pH, below or beyond the normal physiological range.

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Chapter 22.3, Problem 21BYGO

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Respiration is a process of breathing, which is referred to as the movement of oxygen (O₂) and carbon dioxide (CO₂) to and from the lungs. Chemoreceptor is a specialized receptor cell that reacts to a chemical stimulus to produce a biological signal. There are two types of chemoreceptors, central chemoreceptor which is located in the medulla of the brain and the peripheral chemoreceptor which includes the carotid and the aortic bodies that respond to even small changes in the PO₂, PCO₂ and pH, below or beyond the normal physiological range.

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